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To: Bilow who wrote (31914)10/10/1999 5:04:00 AM
From: Tenchusatsu  Respond to of 93625
 
Bilow, <Why did the Intel engineers stop at 266MHz? Why didn't they go to 800MHz, like Rambus, or even beyond?>

For HubLink, the answer is easy. Going to 266 MHz allowed the interface to be narrowed all the way down to 8 bits. Going to faster speeds either allows for higher bandwidths, which Intel doesn't need at the moment, or fewer pins, which doesn't make any sense since the pin-count has already been reduced to eight.

Besides, who said Intel is going to stop at 266 MHz?

<The natural speed limits on a direct connection between two chips on the same PCB is something like 266MHz>

From my point-of-view, this is incorrect. 266 MHz may be the sweet spot of today's interfaces, but in the near future, that 266 MHz "barrier" will easily be breached. AMD already announced that the Athlon bus will be increased to 400 MHz someday. They also announced an LDT interface that they'll be co-developing with HotRail, and that baby runs at 1.6 GHz over narrow uni-directional channels. And like I said before, Intel isn't going to stop at 266 MHz either.

In short, this so-called "266 MHz barrier" is going to be breached starting at the end of 2000, if you don't count Rambus. That's why I don't think any of your arguments hold water.

Tenchusatsu